norite

[ nawr-ahyt ]

noun

1. a granular igneous rock consisting of a mix of light and dark minerals, the former being calcic plagioclase feldspars, and the latter orthorhombic pyroxenes.

norite

/ ˈnɔːraɪt /

noun

1. a variety of gabbro composed mainly of hypersthene and labradorite feldspar

norite

/ nôr′īt /

1. See gabbro
2. A coarse-grained igneous rock, very similar to gabbro but containing orthopyroxene instead of clinopyroxene.

Other Words From

• nor·it·ic [naw-, rit, -ik], adjective

Word History and Origins

Origin of norite¹

From the Norwegian word norit, dating back to 1875–80. See Norway, -ite ¹

Word History and Origins

Origin of norite¹

C19: from Norwegian norit, from Norge Norway + -it -ite ¹

Example Sentences

In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.

From Project Gutenberg

Near the ores there are likely to be granitic rocks, which, like the ores, seem to be segregations from the norite magma.

From Project Gutenberg

In New York the emery deposits are segregations of aluminum and iron oxides in norite (a basic igneous rock).

From Project Gutenberg